Holistic Alternatives, Inc.

In the last part of the series we wrote about how to read the amounts of ingredients per tablet or capsule. In that article we wrote using the example of one product (product “A”) which contained 3 mg of α-chymotrypsin per tablet and  another product (product “B”) which only contained 1.5 mg of α-chymotrypsin per tablet.

Now we need to confuse the issue slightly but only to clarify it later. The 3 mg and 1.5 mg amounts are not necessarily different in terms of the enzyme activity. How can it be that 3 mg of an enzyme and 1.5 mg of an enzyme could be the same? Well, it’s because the enzyme raw materials are available in different activity levels per mg. Total enzyme activity levels are how enzymes should be compared and they should be compared in equivalent units. We will use an equivalent generic unit in the example below. But be aware that there are many, many ways of measuring enzyme activity and some of them don’t compare very well, much like the graphs at the left side of the article. More on this in a later part of the series.

Now for an example. For instance, let’s say that product “A” is made with α-chymotrypsin that has 500 units of activity per mg. To get the total α-chymotrypsin activity in product “A” we would multiply 3 mg times 500 units per mg to get 1500 units total α-chymotrypsin activity. Let’s say that product “B” is made with α-chymotrypsin in 1000 units of activity per mg. To get the total units of α-chymotrypsin activity per tablet we would multiply 1.5 mg times 1000 units of α-chymotrypsin activity per mg to get 1500 units of α-chymotrypsin activity per tablet, exactly the same as product “A.” The smaller weight of α-chymotrypsin in product “B” is equal in activity to the larger weight of α-chymotrypsin in product “A” because product “B” used an enzyme that was twice as active as product “A’s” enzyme, thus making up for the difference in weight of the enzyme present. Label information for the products might look something like that below-

As you can see, it’s up to the consumer to determine the total enzyme activity of the two products. Now that you understand the relationships between weight of enzymes in a product and the activity of the enzymes it should be much easier to choose between products.

In the next section we will show you how to compare different enzyme activity units.